Hank the Cowdog and his trusty partner, Drover, are just beginning their latest investigation when a pirate suddenly appears on the front porch! Has the ranch really been set upon by one-legged men of the sea? Hank and Drover soon realize that the pirate is just Little Alfred in disguise. And who else would Little Alfred choose as his first mate but Hank? After he enthusiastically agrees to be hoisted up into the tree-house pirate ship, Hank suddenly remembers -- dogs don't belong in trees! Can the Head of Ranch Security come up with a way to survive his adventure on the high seas and return to shore in one piece?